How to communicate with the window manager?

[Nils Rennebarth <nils ipe uni-stuttgart de>]

I want my application to execute another program and while the other program
runs it should iconize itself and pop up again when the other program
finishes.

How do I do this, given a decent windowanager. Is there a standard way?

Nils

--
Plug-and-Play is really nice, unfortunately it only works 50% of the time.
To be specific the "Plug" almost always works.            --unknown source

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